Viewing:All Tools (Category-Wise)
12 categories (6424 total tools)
Developer Tools
526 toolsFormat, validate, inspect, and debug code
CSS to Tailwind CSS Utility Class Transpiler & Converter
Convert raw CSS declarations, selectors, and stylesheets into clean Tailwind CSS classes.
JSON Schema to TypeScript & Zod Transpiler
Transpile JSON Schema Draft 7 & 2020-12 into strict TypeScript interfaces and runtime Zod schemas.
RFC 1035 BIND DNS Master Zone File Generator & Validator
Generate compliant RFC 1035 BIND zone files with SOA, NS, A, AAAA, CNAME, MX, and TXT records.
TypeScript Enum to String Union Type (`type Status = 'a' | 'b'`) Converter
Convert legacy TypeScript numeric/string enums into modern, bundle-friendly string union types.
Git Cherry-Pick Commit Range (`A..B`) Command Helper
Generate precise CLI commands to cherry-pick single commits or commit ranges without merge commits.
Dockerfile `HEALTHCHECK` & Compose Health Probe Generator
Generate production HEALTHCHECK instructions for curl, wget, and pg_isready.
SQL `CROSS JOIN` (Cartesian Product) Row Matrix Simulator
Simulate SQL CROSS JOIN multiplication (N x M rows) between two tables.
Nginx `limit_req_zone` IP Rate Limiting Configurator
Generate DDoS-resistant Nginx rate limiting rules with burst and nodelay flags.
Caddy Server `reverse_proxy` Caddyfile Block Generator
Generate clean modern Caddyfile configuration blocks with automated HTTPS.
JSON Object to Zod Schema (`z.object({...})`) Validator Generator
Infer and generate complete TypeScript Zod schema definitions from sample JSON payloads.
Git Worktree (`git worktree add / remove`) Multi-Branch Manager
Generate Git worktree commands to work on multiple branches concurrently in parallel directories.
NPM Package `overrides` & `resolutions` Dependency Patch Generator
Fix vulnerable transitive dependencies via package.json 'overrides' without breaking major versions.
Text Utilities
235 toolsAnalyze, transform, and clean text content
Automated Readability Index (ARI) Grade Level Calculator
Calculate US grade level comprehension using the Automated Readability Index (ARI) formula.
Text Accent & Diacritical Mark (é, ü, ñ -> e, u, n) Normalizer
Strip accents and normalize European characters into plain ASCII Latin letters.
ROT13 & Caesar Cipher (A-Z Rotate by 13) Decoder
Encode and decode reversible ROT13 and custom Caesar cipher text strings.
Markdown Subscript (`~H~2~O~`) & Superscript (`^2^`) Formatter
Format scientific Markdown chemical formulas and mathematical exponents.
Morse Code (`... --- ...`) Bidirectional Text & Audio Translator
Translate international Morse code dits and dahs to text with client-side Web Audio beeps.
Text Line Number Prefixer & Padding (`001: `, `[1] `) Studio
Prepend customized line numbers with zero padding or bracket formatting.
Markdown Horizontal Rule Divider (`---`, `***`, `___`) Styler
Generate standard Markdown horizontal thematic break dividers and custom ASCII decorative separators.
Base64 to Base64URL (`+` to `-`, `/` to `_`, No `=`) Converter
Convert standard Base64 strings to RFC 4648 Base64URL safe encoding without padding.
String Case Multi-Variant (camel, snake, kebab, Pascal, CONSTANT) Matrix
Convert identifier strings simultaneously into 6 naming conventions in real-time.
GitHub Flavored Markdown (`> [!NOTE]`, `[!TIP]`) Alert Callout Formatter
Format GFM callout alert banners (NOTE, TIP, IMPORTANT, WARNING, CAUTION).
Coleman-Liau Readability Index & Grade Level Calculator
Calculate readability grade levels using the character-based Coleman-Liau formula.
Text Word-Wrap & Fixed Column Width Hard Wrapper
Wrap text lines at strict column character widths (e.g. 80 cols, 100 cols, 120 cols).
Unit & Code Converters
607 toolsTransform between units, formats, and encodings
Acre To Are Conversion Calculator
Convert acre to are with exact multi-unit precision and instant matrix comparison.
Acreage Calculator
Convert acreage with exact multi-unit precision and instant matrix comparison.
Acres To Hectares Converter Calculator
Convert acres to hectares with exact multi-unit precision and instant matrix comparison.
Acres To Square Feet Converter Calculator
Convert acres to square feet with exact multi-unit precision and instant matrix comparison.
Acres To Square Miles Calculator
Convert acres to square miles with exact multi-unit precision and instant matrix comparison.
Angle Converter Calculator
Convert angle with exact multi-unit precision and instant matrix comparison.
Angstrom To Nm Conversion Calculator
Convert angstrom to nm with exact multi-unit precision and instant matrix comparison.
Area Converter Calculator
Convert area with exact multi-unit precision and instant matrix comparison.
Ares To Cents Calculator
Convert ares to cents with exact multi-unit precision and instant matrix comparison.
Ares To Hectares Calculator
Convert ares to hectares with exact multi-unit precision and instant matrix comparison.
Astronomical Unit Calculator
Convert astronomical unit with exact multi-unit precision and instant matrix comparison.
Atm Conversion Calculator
Convert atm with exact multi-unit precision and instant matrix comparison.
Generators
102 toolsCreate passwords, hashes, UUIDs, and QR codes
NanoID Custom Alphabet & Cryptographic URL Identifier Generator
Generate secure, URL-friendly 21-character NanoIDs with custom alphabet dictionaries.
CUID2 Secure Collision-Resistant Unique Identifier Generator
Generate next-generation collision-resistant CUID2 strings for distributed databases.
Random Mock Credit Card (Visa, Mastercard, Amex) Luhn Generator
Generate Luhn Modulo-10 valid mock credit card numbers for billing sandbox QA.
Random Mock IPv6 Address & `/64` CIDR Subnet Block Generator
Generate RFC 4193 Unique Local IPv6 addresses (`fd00::/8`) and /64 subnets.
Random Semantic Versioning (`v1.4.2-beta.1`) Release Tag Generator
Generate valid Semantic Versioning (SemVer 2.0.0) release tags with pre-release labels.
Mock JSON Web Key (JWK / JWKS RFC 7517) Mock RSA/EC Key Generator
Generate RFC 7517 JSON Web Key Set (JWKS) structures for OAuth2 and OIDC sandboxes.
Random Docker Container ID & Image SHA256 Hash Generator
Generate 12-character short container IDs and 64-character SHA256 image hashes.
Random GUID / UUID C# Format (`Guid.NewGuid()`, 'N', 'D', 'B', 'P') Studio
Generate C# and .NET formatted GUIDs in N, D, B, and P string formats.
Random US EIN (Employer Identification Number) Test Generator
Generate mock 9-digit US EIN tax IDs (`XX-XXXXXXX`) for sandbox invoicing testing.
Random Mock IBAN (DE, GB, FR, ES) Bank Account Simulator
Generate validly formatted mock International Bank Account Numbers for fintech sandbox testing.
E-Commerce Product SKU (Stock Keeping Unit) Pattern Generator
Generate standardized product inventory SKUs (e.g. APP-TSH-BLK-MD-892).
Mock GraphQL Query & Mutation Request Builder
Generate standard GraphQL query and mutation requests with variables.
PDF Utilities
82 toolsMerge, split, compress, and organize documents
PDF Grayscale & Monochrome Black-and-White Document Studio
Convert color PDF pages to monochrome grayscale to reduce printer ink and file size.
PDF Odd and Even Page Splitter (Duplex Manual Printing)
Split PDF pages into separate Odd (1, 3, 5) and Even (2, 4, 6) documents for manual duplex printing.
PDF Embedded Image Stream (XObject / DCTDecode) Inspector
Inspect embedded image resolutions, color spaces, and compression formats inside PDF files.
PDF Fast Web View (Linearization / Byte-Serving) Inspector
Verify whether a PDF document is optimized for Fast Web View page-by-page streaming.
PDF Extensible Metadata Platform (XMP XML Packet) Extractor
Extract raw XML Extensible Metadata Platform (XMP) packets from PDF binary headers.
PDF/A Archival Conformance (PDF/A-1b, PDF/A-2b, PDF/A-3) Checker
Verify whether a PDF complies with ISO 19005 PDF/A long-term archiving standards.
PDF Interactive Form (AcroForm & XFA) Fields Inspector
Inspect form input fields (Text, Checkbox, Radio, Signature) inside interactive PDFs.
PDF Custom Page Sequence & Order Rearranger
Rearrange PDF page sequences (e.g. 3, 1, 2, 5, 4) in-browser with zero upload.
PDF Duplicate & Repeated Page Range Remover
Remove duplicate consecutive page ranges and export clean streamlined PDFs.
PDF Embedded Font & Typography Typeface Inspector
Inspect embedded TrueType and Type 1 font descriptors inside PDF files.
PDF Creation Date & Modification Timestamp Sanitizer
Sanitize CreationDate and ModDate metadata stamps from PDF files for privacy.
PDF MediaBox & CropBox Dimensions Inspector (Points to Inches)
Inspect physical PDF MediaBox dimensions in PostScript points, inches, and millimeters.
Image Processing
219 toolsCompress, resize, crop, and convert images
Photo High-Contrast Binary 1-Bit Black & White Threshold Studio
Convert images to pure 1-bit high-contrast black and white binary bitmaps.
Photo 360° Hue Rotation & Psychedelic Color Shift Studio
Rotate photo color spectra across the 360° hue angle wheel.
Photo 3D Emboss & Bas-Relief Convolution Matrix Studio
Generate 3D paper stamp emboss and metallic stone bas-relief visual effects.
Photo Sobel Edge Detection & Computer Vision Contour Studio
Extract spatial gradient edges using Sobel and Laplacian convolution kernels.
Photo Color Quantization & Posterize Pop-Art Canvas Studio
Reduce color depth (2 to 16 tonal levels) for retro comic poster aesthetics.
Photo Gamma Correction Curve ($gamma = 0.2$ to $3.0$) Dynamic Range Studio
Fine-tune midtone dynamic range and shadow illumination via power-law gamma curves.
Photo Sharpness & Unsharp Mask (USM) Canvas Detail Enhancer
Enhance high-frequency edge micro-contrast and clarity in-browser.
Photo Color Channel Swapper (RGB to BGR / BRG / GBR / GRB) Studio
Permute and swap red, green, and blue color channels for infrared aesthetics.
Photo Vibrance & Deep Chromatic Saturation Boost Studio
Boost muted colors intelligently without over-saturating skin tones.
Photo Tilt-Shift Miniature Depth-of-Field Blur Studio
Create diorama toy miniature effects with graduated top/bottom Gaussian blurs.
Photo Invert & Color Film Negative Canvas Studio
Invert image colors to create photographic film negatives in-browser.
Photo Sepia & Vintage Tone Canvas Studio
Apply warm sepia retro photo filters (10% to 100%) with client-side export.
Calculators
3934 toolsFinance, aspect ratio, and math calculators
0 60 Calculator
Calculate 0 60 with instant lifestyle estimation and step-by-step verified outputs.
100 Day Calculator
Calculate 100 day with instant lifestyle estimation and step-by-step verified outputs.
120 Day Calculator
Calculate 120 day with instant lifestyle estimation and step-by-step verified outputs.
120 Day Quiz Calculator
Calculate 120 day quiz with instant lifestyle estimation and step-by-step verified outputs.
180 Day Calculator
Calculate 180 day with instant lifestyle estimation and step-by-step verified outputs.
30 Day Calculator
Calculate 30 day with instant lifestyle estimation and step-by-step verified outputs.
30 Min Calculator
Calculate 30 min with instant lifestyle estimation and step-by-step verified outputs.
45 Day Calculator
Calculate 45 day with instant lifestyle estimation and step-by-step verified outputs.
6 Month Calculator
Calculate 6 month with instant lifestyle estimation and step-by-step verified outputs.
60 Day Calculator
Calculate 60 day with instant lifestyle estimation and step-by-step verified outputs.
8 Hour Shift Calculator
Calculate 8 hour shift with instant lifestyle estimation and step-by-step verified outputs.
90 Day Calculator
Calculate 90 day with instant lifestyle estimation and step-by-step verified outputs.
Security & Network
264 toolsAudit strength, inspect certificates, CIDR math
Shannon Entropy & Randomness Analyzer
Measure cryptographic randomness, Shannon entropy (0-8 bits/byte), Chi-square test, and byte distributions.
XOR Cipher Automated Key Brute-Force & Plaintext Scorer
Brute-force all 256 single-byte XOR keys with automated English frequency & chi-squared scoring.
HTTP Security Headers & Content Security Policy (CSP) Auditor
Audit CSP, HSTS, X-Frame-Options, and security headers with OWASP grading (A+ to F).
Password KDF Algorithm (Bcrypt vs Scrypt vs Argon2id vs PBKDF2) Memory Hardness Comparator
Compare memory hardness, GPU ASIC resistance, and security parameters across KDF standards.
TOTP 2FA Secret Key (Base32) & `otpauth://` URI Builder
Generate secure RFC 6238 Base32 TOTP secret keys and standard otpauth:// URIs for Google Authenticator.
DNS CAA `iodef` Security Incident Reporting URI Builder
Generate RFC 6844 CAA iodef DNS records to receive unauthorized TLS issuance alerts.
SHA-3 (Keccak-512) High-Security Cryptographic Hash Studio
Compute 512-bit NIST FIPS 202 SHA-3 cryptographic hashes in-browser.
JWT HMAC-SHA256 (HS256) Signature Verifier & Debugger
Verify HS256 signed JSON Web Tokens against secret keys with zero network egress.
IPv4 to Dotted Hexadecimal & Octal Radix Obfuscator
Translate IPv4 addresses into DWORD integers, dotted hexadecimal (0x7F.0x0.0x0.0x1), and octal notation.
Argon2 Hash String (`$argon2id$v=19$m=65536,t=3,p=4$...`) Decoder
Parse Argon2 encoded strings into type, version, memory (m), iterations (t), and parallelism (p).
SSH-Ed25519 Public Key Fingerprint (SHA256 / MD5) Extractor
Calculate SHA256 and MD5 host key fingerprints from ssh-ed25519 public keys.
ASN.1 DER / BER Hex Dump Byte Tag Inspector
Inspect ASN.1 tag identifiers (0x30 SEQUENCE, 0x02 INTEGER, 0x06 OID) from raw hex bytes.
Color & Palette
138 toolsContrast checkers, palette generators, harmonies
CSS Checkerboard Transparency Background Pattern Generator
Generate lightweight CSS linear-gradient checkerboard grids for transparent canvas backgrounds.
Split-Complementary 3-Color Harmony Palette Generator
Generate high-contrast, low-tension palettes (Base, +150°, +210°) on the 360° color wheel.
CSS Glassmorphism & Frosted Glass (`backdrop-filter`) Studio
Generate modern iOS / macOS frosted glass cards with translucent borders and backdrop blurs.
Tetradic (Square 90° / Rectangle 60°-120°) 4-Color Harmony Generator
Generate vibrant 4-color palettes spaced evenly at 90° angles around the color wheel.
CSS Animated Shimmer & Skeleton Loader Generator
Generate GPU-accelerated linear-gradient shimmer loading placeholders for web apps.
CMYK to Closest Pantone Matching System (PMS) Approximation Studio
Find the closest Pantone PMS spot color equivalent for CMYK print process inks.
CSS Polka Dot Mesh & Micro-Dot Grid Pattern Generator
Generate clean radial-gradient dotted matrix backgrounds for modern developer landing pages.
Monochromatic Single-Hue Color Shade Scale Studio
Generate smooth 7-step monochromatic single-hue lightness scales.
CSS Diagonal Striped Candy Bar Background Pattern Generator
Generate 45° repeating diagonal striped CSS backgrounds for loading bars and hazard tapes.
CSS Animated Conic Rainbow Gradient Border Studio
Generate modern rotating conic-gradient card borders with glowing CSS keyframes.
Analogous Warm & Cool 5-Color Harmony Palette Generator
Generate adjacent 30° harmonic color palettes on the standard 360° color wheel.
Triadic & Tetradic Color Harmony Palette Studio
Generate equidistant 120° Triadic and 90° Tetradic color wheel harmonies.
Date & Time
106 toolsUnix timestamps, timezones, cron generators
Microsoft Excel Serial Date Number (e.g. 45533) to ISO Date Converter
Convert Microsoft Excel 1900 date system serial integers into standard ISO 8601 timestamps.
Astronomical Julian Day Number (JDN & Modified MJD) Calculator
Calculate continuous Julian Day Numbers (JDN) and Modified Julian Date (MJD) from Gregorian dates.
Unix Epoch Nanoseconds & Microseconds to UTC Timestamp Converter
Convert high-precision 19-digit nanosecond timestamps into formatted UTC strings.
Time Zone Daylight Saving Time (DST Spring Forward / Fall Back) Checker
Check exact clock shift dates and hour offsets for US, EU, and global timezones.
ISO 8601 Duration String (`P3Y6M4DT12H30M5S`) Generator
Build valid ISO 8601 duration expressions for scheduling APIs and calendar standards.
Chinese Lunar Calendar Zodiac Animal & Element (Wood, Fire, Earth, Metal, Water) Finder
Find your Chinese zodiac animal and elemental polarity from birth year.
UTC to TAI (International Atomic Time) & GPS Leap Seconds Offset
Calculate cumulative 37-second leap second offsets between UTC, TAI, and GPS time.
ISO 8601 Week Date (`YYYY-Www-D`) String Converter
Convert calendar dates to ISO 8601 week formats (e.g. 2026-W35-6 for Saturday).
Corporate Fiscal Calendar & Quarter (Q1, Q2, Q3, Q4) Calculator
Calculate calendar and custom fiscal year quarters starting in any month (e.g. Feb, July, Oct).
Time Card Decimal Hours (7/8-Minute Rounding) Payroll Calculator
Convert clock in/out minutes to standard payroll decimal hours (15-min / 6-min increments).
Time Units Converter (Milliseconds, Seconds, Minutes, Days)
Convert time durations between Milliseconds (ms), Seconds (s), Hours (hr), and Days.
Moon Phase & 29.5-Day Lunar Cycle Calculator
Calculate current lunar illumination percentage and moon phase for any date.
SEO & Web
103 toolsMeta tag previews, OpenGraph, robots.txt
Geo-Targeting & `content-language` HTML `<meta>` Tag Generator
Generate geotargeting (geo.region, geo.placename, geo.position) meta tags for local SEO.
OpenGraph Music (`music:song`, `music:album`) Metadata Builder
Generate rich audio OpenGraph metadata for Spotify, Apple Music, and podcast embeds.
Schema.org `Organization` & Brand Logo JSON-LD Structured Data Builder
Generate Google Knowledge Graph Schema.org Organization structured data.
Pinterest Rich Pin & Product Availability Meta Tag Generator
Generate Pinterest Rich Pin metadata for automated product stock and article sync.
Author & Publisher E-E-A-T HTML `<meta>` Tag Generator
Generate author, publisher, and copyright HTML meta tags for Google E-E-A-T trust.
OpenGraph Video (`og:video:url`, `og:video:type`) Meta Tag Builder
Generate complete OpenGraph video metadata tags for Facebook, LinkedIn, and Discord embeds.
Twitter / X Card `player` & Inline Media Meta Tag Builder
Generate Twitter Player card meta tags for native video and audio timeline playback.
Bing Webmaster Tools `msvalidate.01` Verification Meta Tag Generator
Generate standard msvalidate.01 meta tags to verify domain ownership in Bing Webmaster.
Mobile Browser Header `theme-color` Meta Tag Builder
Generate HTML <meta name='theme-color'> tags for Safari, Chrome, and Android navbars.
Multi-Language `hreflang` SEO Alternate Link Tag Builder
Generate Google-compliant rel='alternate' hreflang='...' multi-region tags.
Sitemap XML `<url>` Block Generator & Priority Formatter
Generate standard XML sitemap `<url>` elements with <lastmod>, <changefreq>, and <priority>.
Robots `<meta name='robots'>` Directives Builder
Generate HTML meta robots tags with noindex, nofollow, noarchive, and max-snippet controls.
AI Utilities
108 toolsSummarize, refine tone, explain code
AI LLM Inference Cost (GPT-4o, Claude 3.5 Sonnet, Gemini 1.5 Pro) Estimator
Calculate API inference cost given prompt and completion token counts.
Anthropic Claude XML Tag (`<context>`, `<instructions>`) Prompt Wrapper
Structure complex prompts using Claude-compliant XML encapsulation tags.
LLM Prompt Chaining & Multi-Step Workflow Pipeline Builder
Design sequential multi-step prompt chains (Extraction -> Verification -> Summarization).
LLM Prompt Evaluation (Evals) Test Case Matrix Generator
Generate systematic Prompt Eval test case matrices in JSON format for automated benchmark suites.
LLM Zero-Shot vs Few-Shot Prompt Exemplar Template Builder
Build high-accuracy Few-Shot prompt templates with structured Input/Output exemplars.
LLM Chain-of-Thought (CoT) Reasoning Step Scaffolder
Scaffold step-by-step thinking directives ('Think step by step') to reduce reasoning errors.
RAG Vector Document Chunk Size & Token Overlap Calculator
Calculate total vector chunks and embedding costs given chunk size (512, 1024) and overlap (10%).
LLM Sampling Parameters (Temperature & Top-P) Visualizer
Explore greedy decoding vs creative temperature (0.0 to 1.5) and nucleus Top-P sampling.
LLM Function Calling & Tool Definition JSON Schema Builder
Build OpenAI, Anthropic, and Gemini compliant function calling tool schemas.
AI Negative Constraints & Hallucination Guard Builder
Generate strict negative boundary prompt clauses ('Do NOT hallucinate', 'Never mention').
LLM System Prompt Expert Persona & Role Assigner
Generate tailored expert personas (Architect, Senior Reviewer, Security Auditor) for system prompts.
LLM Structured JSON Output Schema Enforcer
Generate strict JSON schema prompt constraints (response_format: json_object).
